Drive for spinning and twisting spindles



May 5, 1964 J. J. KEYSER DRIVE FOR SPINNING AND TWISTING SPINDLES 5 Sheets-Sheet 1 Filed April 26, 1961 May 5, 1964 J. J. KEYSER DRIVE FOR SPINNING AND TWISTING SPINDLES 5 Sheets-Sheet 2 Filed April 26, 1961 lNllENmR May 5, 1964 J. J. KEYSER DRIVE FOR SPINNING AND TWISTING SPINDLES 5 Sheets-Sheet 5 Filed April 26, 1961 [NI E N TOR May 5, 1964 J. .1. KEYSER DRIVE FOR SPINNING AND TWISTING SPINDLES 5 Sheets-Sheet 4 Filed April 26, 1961 1'9 7b Fig. 6a Fig.8!)

NVENTOR May 5, 1964 J. J. KEYSER 3,131,529

DRIVE FOR SPINNING AND TWISTING SPINDLES Filed April 26, 1961 5 Sheets-Sheet 5 :Hif 73 5.9 75 74 INVENTOP United States Patent 3,131,529 DRIVE FOR SPKNNENG AND TWESTING SPENDLES Johann Jacob Keyser, Grabenallee 16, Aarau, Switzerland Filed Apr. 26, 1961, Ser. No. 105,648 Claims priority, application Germany Apr. 28, 1960 11 Claims. (Cl. 57-195) The present invention relates to a drive for spinning and twisting spindles. It is known to drive spinning spindles, twisting spindles, bobbins, and the like, of spin ning machines by means of a belt which tangentially passes by a plurality of spindles and by means of frictional engagement with the whorl of the spindles, rotates the same, and the bobbins. In a manner known per se, the spindles are usually arranged in rows adjacent each other on both sides of the machine, while the frictional engagement of the belt with the spindle whorls is effected by transmission pulleys. In most instances, one transmission pulley is associated with two spindles.

According to another known arrangement, the spindles on one machine side are not arranged along a straight line but along an arch while, if desired, a plurality of arches are provided one behind the other. The belt is customarily driven at one station. As a result thereof, the number of the spindles which may be driven by one belt is limited because, otherwise, the turning forces become too high in order to permit admissible dimensions for a drive by a belt. In this connection, it is to be kept in mind that the cross section of the belts must not exceed certain dimensions because, otherwise, it will not be possible to sufiiciently pre-tension the belt to assure a proper frictional engagement of the Walls. The number of spindles adapted to be driven by such belts is limited which, in turn, brings about other drawbacks.

The tangential engagement of the belt directly with the whorls of the spindles brings about that, due to starting shocks and also due to the centrifugal force and different frictional conditions on the spindles, the belt will be subject-ed to oscillations which are conveyed to the whorls and the spindles and bobbins thereon. The result is an uneven rotation of the spindles and bobbins which, in turn, causes breaks in the thread or yarn, and similar disorders.

When driving a great number of spindles, to which end a belt of large cross section is required, corresponding high driving forces are required which, in turn, bring about high oscillations in the belt. Since, furthermore, there exists the tendency in modern textile plants, continuously to increase the spindle speeds, the running conditions in connection with oscillations and shocks produce numerous disturbances and make impossible a continuous operation aside from the fact that, also, the machine as a whole vibrates, which vibrations are superimposed upon the oscillations of the belt. When employing belts of large cross section which rotate at high speed and directly engage the whorls of the spindles, there will also exist a danger to the operator because the belt moves directly within the range of the operator. An endangering of the operator is to be expected particularly when multi-story machines are involved in which a plurality of driving belts rotate at different superimposed planes and drive spindles arranged one above the other.

3,131,529 Patented May 5, 1964 A further drawback of the heretofore known long belt drives consists in that the belts rotating at high speed cause air currents which harmfully affect the guiding of the threads. Shielding plates, or the like, between the spindles remedy this drawback only to a minor extent because they can extend only up to the higher edge of the belt so that the threads will always be exposed to air movements caused by the rotating belt.

It is, therefore, an objeect of the present invention to provide a drive for spinning and twisting spindles, which will overcome the above mentioned drawbacks.

It is another object of this invention to provide a drive in spinning and twisting spindles, which will eliminate the harmful influence of the belt on spindles and bobbins, and will especially prevent the belt from exerting shocks on the spindles and causing the same to oscillate.

Still another object of this invention consists in the provision of a drive for spinning or twisting spindles, which will make it possible to take the long belt out of the range of the operator thereby making it possible to increase the speed of rotation of the belt without endangering the operator.

It is also an object of this invention to provide a drive for spinning and twisting spindles, in which the belt may be tensioned to such an extent that it will frictionally engage the driving rollers therefor and also the driven parts at any speed and will make sure that the belt will not be lifted off from the parts to be engaged thereby by centrifugal force.

Still another object of the present invention consists in providing a drive for spinning and twisting spindles which will cause the belt to rotate in such a way that the air current caused thereby will practically have no influence on the thread or thread path.

A still further object of the present inventionconsists in providing a drive for spinning and twisting spindles which will make it possible, in case the shielding walls or plates are provided to extend such walls or plates between the individual spindles up to below the driving whorls of the spindle so that each spindle will, so to speak, rotate in a closed chamber and will not be harmfully affected by other rotating parts.

These and other objects and advantages of the invention will appear more clearly from the following specification in connection with the accompanying drawings, in which:

FIG. 1 illustrates a drive according to the invention for spinning and/or twisting spindles, the View ofVFIG. 1 being taken along the line lI of FIG. 2 but being shown on a somewhat larger scale than that of FIG. 2.

FIG. 2 is a diagrammatic top View of a drive according to the invention.

FIG. 3 shows a modified drive according to the" invention as seen along the line III-III of FIG. 4, but on a larger scale than the latter. 7

FIG. 4 is a top view of the modified drive of FIG. 3.

FIG. 5 is a view of a still further modified drive according to the invention.

FIG. 6 is a diagrammatic top view of the spindle drive of FIG. 5 but on a smaller scale than the latter.

FIG. 7 illustrates a pulley with a toothed running, sur face for the tangential belt. v

FIG. 7a is a top view of the tangential belt.

FIG. 7b diagrammatically illustrates the meshing of the tangential belt with the toothed transmission pulley.

FIG. 8 is a transmission pulley around which two belts pass and the running surface of which for the tangential belt is provided with teeth between the said two belts.

FIG. 8a shows a top view of the tangential belts of FIG. 8.

FIG. 8b diagrammatically illustrates a section through the tangential belt while meshing with the teeth of the transmission pulley of FIG. 8.

FIG. 9 shows a two-part transmission pulley.

FIG. 10 represents a transmission pulley engaged by the tangential belt between two belts passing around the transmission pulley.

FIG. 11 shows a three-part or three-sectional transmission pulley in which the intermediate partial pulley is engaged by the tangential belt while the axle of the threepart transmission pulley is journalled in the spindle rail between the sectional pulleys.

General Arrangement The present invention is characterized primarily in that the transmission pulleys which are adapted to be driven by tangential long belts simultaneously drive the spindles through the intervention of short belts or cords.

It is known to drive each spindle individually or in pairs by a short belt or cord looped therearound, which short belt or cord in its turn passes around a driving roller, or the like, mounted on a shaft extending through the machine in longitudinal direction thereof and being driven thereby. With these belt drives, a crossing over belt is necessary because the axes of the main drive shaft and spindle cross each other, so that special guiding and tensioning pulleys were necessary. In contrast thereto, with applicants arrangement, the spindle axis and the axis of the transmission pulley are parallel to each other so that the cord of the belt will rotate in a single plane. The transmission pulley is driven by a long belt which simultaneously drives a plurality of transmission pulleys in the same way and tangentially in the same manner as with the heretofore known machines, the drive of the spindle or the whorls thereof being effected directly. In contrast to the heretofore known arrangements, one spidle may be driven by one or a plurality of superimposed belts or cords. The transmission pulleys may, in their turn, likewise be driven by one or a plurality of long belts which simultaneously drive a plurality of transmission pulleys.

According to the present invention, it is of particular advantage to select the diameter of the spindle whorl shorter than the diameter of the transmission pulleys, whereby a transmission is obtained which makes it possible relatively slowly to rotate the tangential long belt which drives the transmission pulleys, while, due to the inter-position of the transmission pulley, a transmission in speed increasing direction will be obtainable. To this end, the diameter of the transmission pulley within the range of contact of the tangential long belt may be selected shorter in conformity with the transmission than the diameter of the transmission pulley within the range of the short belt passing around said transmission pulley, said short belt being passed around the spindle whorl.

According to a further development of the invention, the arrangement may be such that an imaginary connecting line connecting the axes of a plurality of transmission pulleys forms a slightly curved arch so that the axes of the transmission pulleys are arranged in the same manner as it is known sometimes with belt drives for spindles according to which the belts directly engage the spindle whorls and, in this instance, the spindle axes are located along a slightly curved arch. In this way, a rotation of the transmission rollers by the tangential long belts will be assured in a manner known per se.

' By subdividing the spindle drive, further structural possibilities are obtained which have considerable advantages.

Thus, in conformity with the present invention, the transmission pulleys may be displaceable along the horizontal line perpendicular to the connection line of the spindle axes so that a transmission pulley may be stopped by moving the transmission pulley away from the tangential belt. This will automatically stop the spindle which is driven by the transmission pulley through a short belt or cord. A displacement of the transmission pulley in opposite direction also brings about an additional tightening of the tangential long belt or the tightening of the short belt or cord.

In order to be able, by means of a transmission pulley, to drive a plurality of spindles, the transmission pulleys are, in conformity with the present invention, embraced by a plurality of belts or cords arranged one above the other, said belts or cords respectively passing around the whorl of one or more spindles.

A relatively compact construction will be obtained in conformity with the present invention by causing the tangential long belt approximately in the plane of the belt loop to engage the running surface of the transmission pulley above the short belts or cords radially passing over the transmission pulley.

To this end, the running surface of the transmission roller may be provided with at least one groove in which moves the short belt or cord around the pulley. In this way, the Width of the running surface of the transmission pulley may correspond to the width of the tangential long belt, while the said groove determines the cross section of the short belt or cord which passees around the transmission pulley and around the whorl of the spindles.

According to the invention, the running surface of the transmission pulley may be designed as a V-shaped groove which is engaged by the short belts or cords and also by the tangential long belt in a radially superimposed position. Depending on the forces to be transmitted and the respective speed of rotation, also, other cross sections may be selected. Thus, a short belt or cord, as well as the tangential long belt may be designed as flat belt, round belt, V-belt, or the like. If desired, the tangential long belt and/or the short belt may be designed as a toothed belt.

Instead of having the tangential long belt and the short belt or cord pass around the transmission pulley in a superimposed manner, it is also possible, according to the present invention, to arrange running surfaces of the transmission pulley for the short belt or cord, on the one hand, and for the tangential long belt, on the other hand, in an axially superimposed manner. In this way, the diameter of the running surfaces of the short belts or cords will be greater than that of the running surfaces of the tangential long belt. As a result thereof, the speed of movement of the tangential long belt will be lower than that of the short belts or cords, which, in turn, means a transmission in the direction of increasing the speed. Since, furthermore, transmissions may be obtained by making diameters of the transmission pulley greater than that of the whorl, the intermediate drive, according to the invention, makes possible a multiple transmission so that extremely high speeds will be obtainable for the spindies.

The invention offers numerous possibilities of structural changes in order to permit adapting the drive to the various prevailing conditions. Thus, according to the invention, the transmission pulley may be subdivided horizontally for receiving a plurality of short belts or cords in conformity with the number of superimposed belts or cords. The sectional rollers may be independent of each other and may be axially superimposed upon each other and may be driven by tangential long belts. This alfords the possibility of holding the cross section of the tangential long belt relatively small so that the main driving rollers of the machine can be snugly embraced by the tangential long belt. The tension may be inc eased so that, also, at high speeds and in spite of occurring centrifugal forces, a proper turning will be assured. Particularly favorable mounting conditions will, in conformity with the present invention, be obtained for the transmission pulleys, by causing the tangential long belts to engage one or more sectional transmission pulleys between two belts or cords. Such an arrangement makes it possible to journal the shaft of the transmission pulley on both sides of the sectional pulley which is engaged by the tangential long belt. In this way, the shaft, as well as the bearings, will be subjected to a symmetrical load. A further improvement in the mounting will be obtained by causing the tangential long belt to engage the transmission pulley journalled approximately in the horizontal plane of the spindle rail, while the transmission pulleys embraced by the short belts or cords and having their axes aligned are provided below and/or above the spindle rail. According to a further development of the invention, the transmission pulleys and spindles may in a manner known per se be mounted in the spindle rail, and the driving elements may be covered above and/ or below the spindle rail by detachable closure means. Thus, the entire drive will be located within a closed housing while nevertheless be easily accessible. This brings about the particular advantage that the air movements caused by the movement of the belts, cords, and short belts can be effective only within a covered case, while they cannot cause or bring about any influence upon the threads of the spindles and the guiding paths therefor.

Referring now to the drawings in detail, FIG. 1 illustrates a spindle rail 1 having mounted thereon the spindle generally designated 2. The spindle 2 is provided with a whorl 3, around which passes a belt 4 engaging a V-shaped groove 5 of a transmission pulley generally designated 6. As will be seen from FIG. 2, the belt 4 embraces the transmission pulley 6 by about 180. The pulley 6 is journalled on a shaft 8 through the intervention of an anti-friction bearing 7. Shaft 8 is firmly connected to the spindle rail 1 by means of a nut 9. Thus, when loosening nut 9, shaft 8 may be displaced in a slot 10 of the spindle rail 1 to thereby vary the tension of belt 4. A change in the tension of belt 4 will automatically bring about a change in the tension of belt 14, which latter is located in a second V-shaped groove of pulley 6 and embraces the latter by an angle of 180, while being passed around the whorl 3 of another spindle 2, not shown in FIG. 1, but clearly shown in FIG. 2.

As will also be evident from FIG. 1, pulley 6 has a running surface 11 extending nearly over the entire width. This running surface is engaged by the tangential long belt 12 designed as a flat belt. Thus, as is clearly evident from FIG. 1, the tangential long belt 12 is radial ly above belts 4 and 14 and, when being driven, drives pulley 6. The way in which the tangential long belt 12 engages pulley 6 and prior thereto and thereafter passes by further pulleys 6 is clearly shown in FIG. 2 diagrammatically illustrating a plurality of spindles 2 located one adjacent the other, each being driven in conformity with FIG. 1. FIG. 2, in addition to showing the guiding of the belt 4, also illustrates the guiding of belt 14. Thus, while one tangential long belt drives a plurality of pulleys 6, each pulley 6 drives two spindles 2 by belts 4 and 14.

In order to make sure that the tangential long belt engages the running surface 11 of pulley 6 under a certain pro-tension, the shafts 8 of pulleys 6 are connected to the spindle rail 1 along a slightly curved line or arch, the curvature of said arch being variable by displacing the shafts 3 in slots 10 of the spindle rail 1 whereby, also, the tension of the tangential long belt 12 and the tension of belts 4 and 14 may be varied.

FIGS. 3 and 4 illustrate a modification, according to which the transmission rollers 16 are arranged with regard to the spindle 17 in a manner similar to the arrangement of the transmission pulley 6 with regard to the spindies 2. This is clearly evident from FIG. 4. The embodiment of FIGS. 3 and 4 dirlers, however, from that of FIGS. 1 and 2 in that the whorl 18 has two V-grooves 19. The lower V-groove 19 is engaged by the cord 20, whereas cord 21 passes around the upper V-groove 19 of whorl 18 of another spindle 17. Correspondingly, also, the transmission pulley 16 is provided with two V-grooves 22 engaged by cords 20 and 21, whereas further radially outwardly, there are arranged tangential long belts 23 of a round cross section. While it is suflicient to drive the transmission pulley by means a single tangential longitudinal belt 23, it is advantageous, in case higher driving forces are to be transmitted, to employ two tangential longitudinal belts of round cross section which are superimposed in vertical direction with regard to FIG. 3 and engage V-grooves 22 of the pulley 16. The pulley 16 is similar to the arrangement of FIGS. 1 and 2, adjustably mounted in the spindle rail 1.

FIGS. 5 and 6 illustrate a drive in which the spindle 24 and the transmission pulley 25 are journalled in the spindle rail 1 similar to the manner described above. The arrangement of FIGS. 5 and 6 difiers, however, from the previously described arrangements in that the spindle 24 has an outwardly curved whorl 26 which is embraced by a fiat belt 27, which latter also embraces an outwardly curved running surface 28 of a pulley 25. The diameter of the pulley 25 is more than twice the diameter of the running surface of whorl 26 so that a step-up transmission will be obtained. Below the running surface 28, the pulley 25 isprovided with a V-groove 30 which is engaged by a tangential long belt 29 which is designed as a V-belt. The diameter of the pulley 25 where it is engaged by the tangential long belt 29 is considerably less than the diameter of the running surface for belt 27. Also, this difference in diameters brings about a certain transmission ratio. Thus, with the drive, according to FIGS. 5 and 6, a double speed transmission will be obtained. In contrast to the previous embodiment, the tangential long belt 29 engages that side of the pulley 25 which faces the spindles 24. The pulleys 25 arranged adjacent each other are likewise mounted along a slightly curved line which, however, is curved toward the spindles 24 arranged along a straight line.

FIGS. 7 to 10 illustrate various embodiments of transmission rollers, tangential long belts and short belts and cords. With the transmission roller 41 according to FIG. 7, the running surface 42 for belt 43 passing around the spindle whorl is located in the central portion of the roller 41. At both sides of the transmission roller there are provided teeth 44 adapted to mesh with the likewise toothed tangential long belt 45. The structure of said belt 45 and its cooperation with the teeth 44 of the roller 41 is clearly evident from FIGS. 7a and 7b. According to the arrangements shown in FIGS. 8 to 8b, the tangential long belt 46 engages the transmission roller 47 along the central portion thereof, whereas on both sides thereof are provided V-grooves 48 which are engaged by the belts 49 passing around the roller 47. The tangential long belt 46 is provided with passages 50 which correspond to the teeth 51 at the outer circumference of the roller 47.

According to FIG. 11, two transmission rollers are mounted on a common axle 52 one above the other. The partial clamping rollers 53 and 54 are equipped with V- grooves 56 engaged by the short belts 57 which pass around the rollers 53 and 54 respectively, whereas radially located above said belts 57 the transmission rolleris engaged by the tangential long belt 58.

With the embodiment according to FIG. 10, the transmission roller 59 has its outer circumference provided with three V-grooves 60, 61. While the outer V-grooves 60 are to be engaged by the cords 62 leading to the spindles, the V-groove 61 is to be engaged by the tangential long belt 63 between the two belts 62.

A similar construction is disclosed in FIG. 11 which latter difiers from FIG. 10 in various respects. As will be seen from the drawing, the arrangement according to FIG. 11 comprises three sectional transmission rollers 64, 66 and 65 which are axially superimposed and keyed to the axle 67. When the lower section roller 65 and the upper section roller 64 are passed around by a fiat belt 68 which is looped around a whorl 69 of a spindle 70 provided with two whorls, the V-groove 71 of the central sectional roller 66 will be engaged by the tangential long belt 72 which has a V-shaped cross section. The central sectional roller 66 has its central plane located in the central plane of the spindle rail 75 which is forked and which receives the sectional roller 66 between the fork prongs 74. The axle or axle stud 67 is jonrnalled in the two antifriction bearings 73 on both sides of the sectional roller 66. The arrangement is such that the two antifriction bearings 73 are mounted in the fork prongs 74 of the spindle rail 75. The two fork prongs 74 may, if desired, be displaceable in a direction perpendicular to the axis of the spindle 70 in order in this way to vary the tension of belts 68 or of the tangential long belt 72 as it has been described in connection with FIG. 1. By journalling the axle 67 in the two antifriction bearings 73 symmetrically with regard to the sectional roller 66, a uniform power distribution of both belts 68 or cords at the sectional rollers 64, 65 and the bearings 73 thereof will be assured and a tipping will be obviated.

Spindle 70 is journalled in the spindle rail 75 by means of the antifriction bearing 76. The box-shaped chamber obtained by the vertical leg '77 of the spindle rail 75 and, more specifically, the box-shaped chamber above the spindle rail 75 and also below the same is closed by the cover plate 78. In this way, all long belts and all short belts and cords are located in closed chambers which are easily accessible by merely removing the cover plate 73. Consequently, an exchange of the belt 68 or 72 can easily be accomplished. Also the sectional rollers 64 and 65 may without diiiiculties be removed from the axle 67. Similar to the above described embodiments, also with this embodiment no necessity exists to have the superimposed sectional rollers 64 and 65 to act by belts 68 upon superimposed whorls of a single spindle 70. It is rather possible to have each belt 68 associated with one or more spindles somewhat along the construction shown by way of example in FIG. 5. Similar to the other embodiments, the short belts and the tangential belts may have diiferent cross sections, and the belts may actually be replaced by cords. The position of the transmission roller regardless whether it consists of one part only or has a plurality of parts, may with regard to the spindles be selected in different ways as will be evident with regard to FIGS. 2, 4, and 6.

From the above it will be evident that the present invention has created an intermediate drive which makes it possible that any occurring oscillations of the long tangential belt driving the transmission rollers will have no harmful effect upon the spindles. At the same time, it is also made sure that the tangential long belt driving the transmission roller will rotate at a more or less greater distance from the spindles and will thus have no effect upon the processing of the threads.

Furthermore, there exists the possibility of employing a plurality of superimposed tangential long belts of relatively small cross section for driving the transmission rollers in case high driving forces are required. In the case of difierential speeds, a compensation will be obtained by the intermediate drive so that the spindles will be able to rotate shock-free and smoothly. Tangential long belts may be passed around the transmission rollers under a pretension so that if greater centrifugal forces should occur, there will exist no danger that the belt will be lifted oil from the transmission rollers and the reversing or driving rollers. By separating the driving tangential belt from the spindles by means of the intermediate transmission, there is created the possibility of employing various cross sections for the tangential long belt which has to drive the transmission rollers, without having to consider the respective spindles.

It is, of course, to be understood that the present in vention is, by no means, limited to the particular constructions shown in 'the drawings but also comprises any modifications within the scope of the appended claims.

What I claim is:

1. In combination in a textile machine: a plurality of spindles, a plurality of pulley means arranged along said machine and having their axes of rotation substantially parallel to the axes of rotation of said spindles, first belt means tangentially and drivingly engaging said pulley means, and second belt means respectively passing around said pulley means and respectively drivingly engaging at least one of said spindles, said second belt means being arranged substantially symmetrically with regard to the longitudinal plane of symmetry of said first belt means.

2. An arrangement according to claim 1, in which said second belt means are considerably shorter than said first belt means.

'3. In combination in a textile machine: a plurality of spindles, each of said spindles being provided with a whorl, a plurality of pulleys arranged along said machine and having their axes of rotation substantially parallel to the axes of rotation of said spindles, first belt means tangentially and drivingly engaging said pulleys, and pairs of second belt means respectively passng around said pulleys and respectively drivingly engaging at least one of said spindles, the belt means of each pair of second belt means passing around one and the same adjacent pulley in vertically spaced arrangement thereto While being substantially symmetrically located with regard to the longitudinal plane of symmetry of said first belt means.

ft. In combination in a textile machine: a plurality of sp ndles, a plurality of pulleys arranged along said machine and having their axes of rotation substantially parallel to the axes of rotation of said spindles, first belt means tangentially and drivingly engaging said pulleys, and second belt means respectively passing around said pulleys and respectively drivingly engaging at least one of said spindles, said first belt means engaging said pul leys close to the plane along which said second belt means engage said pulleys, said second belt means being arranged substantially symmetrically with regard to the longitudiual plane of symmetry of said first belt means.

a. In combination in a textile machine: a plurality of spindles, a plurality of pulleys having their periphery provided with groove means of V-shaped cross section and being arranged along said machine, the axes of rotation of said pulleys being substantially parallel to the axes of rotation of said spindles, first belt means located in the outer portion of said groove means so that said first belt means substantially tangentially and drivingly engage said pulleys, and second belt means likewise located 111 said groove means but radially inwardly with regard to said first belt means and respectively passing around said pulleys, said second belt means respectively drivingly engaging at least one of said spindles being arranged substantially symmetrically with regard to the longitudinal plane of symmetry of said first belt means.

6. In combination in a textile machine: a plurality of spindles having their taxes arranged substantially along a straight line, a plurality of pulleys arranged along said machine and having their axes of rotation substantially parallel to the axes of rotation of said spindles, supporting means provided with slot means extending substantially perpendicular to the connecting line connecting the axes of said spindles, adjustable fastening means arranged in said slot means and supporting said pulleys whereby the latter are adjustable perpendicularly to said connecting line along a horizontal plane, first belt means entially and drivingly engaging said pulleys, and second belt means respectively passing around said pulleys and respectively drivingly engaging at least one of said spindles, said second belt means being arranged substantially symmetrically with regard to the longitudinal plane of symmetry of the respective adjacent first belt means.

7. An arrangement according to claim 1, in which said first belt means are flat.

8. An arrangement according to claim '1, in which said second belt means (BIG flat.

9. An arrangement according to claim 1, in which said first belt means are designed as toothed belt means.

10. An arrangement according to claim 1, in which said pulley means are composed of a plunality of sectional pulleys superimposed 'upon each other in axial alignment with each other and in driving connection with each other.

11. An arrangement according to claim 1, in which said spindles are supported by a spindle rail, and which ineludes detachable cover means mounted on said spindles and normally cove-ring said pulley means and said first and second belt means.

References Cited in the file of this patent UNITED STATES PATENTS 2,576 Danforhh Apr. 21, 1842 114,341 Randolph May 2, 1871 410,367 Lough Sept. 3, 1889 1,016,394- Brown Feb. 6, 1912 2,460,152 Sio Ian. 25, 1949 2,807,130 Tnapido et al Sept. 24, 1957 2,837,889 Comer June 10, 1958 FOREIGN PATENTS 3,047 Great Britain of 1876 

1. IN COMBINATION IN A TEXTILE MACHINE: A PLURALITY OF SPINDLES, A PLURALITY OF PULLEY MEANS ARRANGED ALONG SAID MACHINE AND HAVING THEIR AXES OF ROTATION SUBSTANTIALLY PARALLEL TO THE AXES OF ROTATION OF SAID SPINDLES, FIRST BELT MEANS TANGENTIALLY AND DRIVINGLY ENGAGING SAID PULLEY MEANS, AND SECOND BELT MEANS RESPECTIVELY PASSING AROUND SAID PULLEY MEANS AND RESPECTIVELY DRIVINGLY ENGAGING AT LEAST ONE OF SAID SPINDLES, SAID SECOND BELT MEANS BEING 